WO2019132326A1 - Mixer for combustor - Google Patents

Abstract

The present invention comprises: an inner housing into which air flows; a first outer housing disposed so as to encompass an outlet part of the inner housing, and spaced from the inner housing such that the air flows therein; a second outer housing disposed inside the first outer housing, and disposed so as to be spaced from the inner housing, thereby guiding liquid fuel; a fuel guide part connected to the second outer housing, and guiding the liquid fuel from the outside to a space between the inner housing and the second outer housing; and a first baffle part disposed between the inner housing and the second outer housing, and distributing, between the inner housing and the second outer housing, the liquid fuel supplied from the fuel guide part.

Description

Combustor for Combustor

The present invention relates to an apparatus, and more particularly to a mixer for a combustor.

Generally, the mixer is disposed in the combustor, and the fuel and the gas may be mixed and supplied to the combustor. At this time, the mixer may be supplied with the liquid fuel from the outside and mix with the gas after the particulate change. When the liquid fuel is supplied to such a mixer, the liquid fuel must be uniformly distributed while passing through the mixer, so that the liquid fuel can be made into fine particles.

However, in the above case, the liquid fuel supplied to the mixer may not be uniformly supplied to the entire mixer due to excessive pressure loss at a specific site, and the liquid fuel may not be atomized at a specific site. In this case, not only the performance of the combustor is deteriorated but also the performance of the engine in which the combustor is disposed can be deteriorated.

A combustor related to such a combustor is specifically disclosed in Japanese Patent No. 468977 entitled " Secondary fuel nozzle, patentee: GENERAL ELECTRIC CO. &Quot;

Embodiments of the present invention seek to provide a mixer for a combustor.

According to an aspect of the present invention, there is provided an air conditioner comprising: an inner housing into which air is introduced; a first outer housing disposed to surround the outlet of the inner housing and separated from the inner housing to receive air; A second outer housing disposed within the inner housing and spaced apart from the inner housing to guide the liquid fuel; and a second outer housing connected to the second outer housing, And a first baffle portion disposed between the inner housing and the second outer housing and distributing the liquid fuel supplied from the fuel guide portion between the inner housing and the second outer housing Lt; / RTI >

The embodiments of the present invention can uniformly provide the liquid fuel to the entire mixer, thereby raising the uniformity of the granulated liquid fuel discharged from the downstream end of the mixer.

Embodiments of the present invention can minimize the pressure loss of the liquid fuel at the downstream of the mixer.

The embodiments of the present invention can uniformly provide the liquid fuel to the entire mixer, thereby raising the uniformity of the granulated liquid fuel discharged from the downstream end of the mixer.

Embodiments of the present invention can promote particulation of the liquid fuel.

1 is a partial cross-sectional view showing a mixer according to an embodiment of the present invention.

2 is a cross-sectional view showing the mixer shown in Fig.

3 is a cross-sectional view illustrating a mixer according to another embodiment of the present invention.

4 is a cross-sectional view taken along the line IV-IV in FIG.

Fig. 5 is a conceptual diagram showing an engine including the mixer shown in Fig. 1 or Fig.

6 is a partial cross-sectional view showing a mixer according to another embodiment of the present invention.

7 is a cross-sectional view showing the mixer shown in Fig.

8 is a cross-sectional view showing part A shown in Fig.

9 is a cross-sectional view showing a mixer according to another embodiment of the present invention.

10 is a perspective view showing the inner housing of the mixer shown in FIG.

11 is a cross-sectional view showing a mixer according to another embodiment of the present invention.

12 is a perspective view showing the inner housing of the mixer shown in Fig.

FIG. 13 is a conceptual diagram showing an engine including the mixer shown in FIG. 6, FIG. 9, or FIG.

According to an aspect of the present invention, there is provided an air conditioner comprising: an inner housing into which air is introduced; a first outer housing disposed to surround the outlet of the inner housing and separated from the inner housing to receive air; A second outer housing disposed within the inner housing and spaced apart from the inner housing to guide the liquid fuel; and a second outer housing connected to the second outer housing, And a first baffle portion disposed between the inner housing and the second outer housing and distributing the liquid fuel supplied from the fuel guide portion between the inner housing and the second outer housing Lt; / RTI >

 The apparatus may further include a chamber portion connecting the inner housing and the second outer housing, wherein the first baffle portion is disposed.

The first baffle portion may be disposed to partly separate the chamber portion from the inner wall of the chamber portion so as to divide the chamber portion into two spaces and connect the two chambers of the chamber portion.

The distance between the first baffle portion and the inner wall of the chamber portion may differ depending on the distance from the fuel guide portion.

The apparatus may further include a second baffle portion disposed to form an angle with the first baffle portion and distributing the liquid fuel supplied between the inner housing and the second outer housing.

In addition, a plurality of the second baffle portions may be provided, and the distance between the adjacent second baffle portions may be different according to the distance from the fuel guide portion.

According to another aspect of the present invention, there is provided an air conditioner comprising: an inner housing into which air is introduced; a first outer housing disposed to surround the outlet of the inner housing and separated from the inner housing to receive air; A second outer housing disposed within the inner housing and spaced apart from the inner housing to guide the liquid fuel; and a second outer housing connected to the second outer housing, And a fuel guide portion for guiding the fuel to the space, wherein the inner housing is provided with a through hole communicating with the space between the inner housing and the second outer housing.

Further, the through holes may be formed in a spiral shape.

The plurality of through holes may be arranged along the outer surface of the inner housing and spaced apart from each other.

In addition, a plurality of through holes may be provided, and the plurality of through holes may be arranged diagonally on an outer surface of the inner housing.

In addition, the sizes of the inlets of the through holes may be different from each other.

Further, a swirler disposed between the second outer housing and the inner housing may be further provided, and the discharge port of the through-hole may be disposed on the downstream side of the swirler with respect to the flow direction of the liquid fuel.

According to another aspect of the present invention, there is provided an air conditioner, comprising: an inner housing into which air flows, an outer housing disposed to surround an outlet of the inner housing and separated from the inner housing to receive air, A second outer housing disposed within the inner housing and spaced apart from the inner housing for guiding the liquid fuel; a second outer housing connected to the second outer housing, the liquid fuel being disposed between the inner housing and the second outer housing, A first baffle portion disposed between the inner housing and the second outer housing and distributing liquid fuel supplied from the fuel guide portion between the inner housing and the second outer housing; Wherein the inner housing is provided with a mixer having a through hole communicating with a space between the inner housing and the second outer housing, Can.

The apparatus may further include a chamber portion connecting the inner housing and the second outer housing, wherein the first baffle portion is disposed.

The first baffle portion may be disposed to partly separate the chamber portion from the inner wall of the chamber portion so as to divide the chamber portion into two spaces and connect the two chambers of the chamber portion.

The apparatus may further include a second baffle portion disposed to form an angle with the first baffle portion and distributing the liquid fuel supplied between the inner housing and the second outer housing.

Further, the through holes may be formed in a spiral shape.

In addition, a plurality of through holes may be provided, and the plurality of through holes may be arranged diagonally on an outer surface of the inner housing.

In addition, a plurality of the through holes may be provided, and the sizes of the inlets of the through holes may be different from each other.

Further, a swirler disposed between the second outer housing and the inner housing may be further provided, and the discharge port of the through-hole may be disposed on the downstream side of the swirler with respect to the flow direction of the liquid fuel.

BRIEF DESCRIPTION OF THE DRAWINGS The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated in the drawings and described in detail in the detailed description. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The terms first, second, etc. used in this specification may be used to describe various elements, but the elements should not be limited by terms. Terms are used only for the purpose of distinguishing one component from another.

It will be understood that when a layer, film, region, plate, or the like is referred to as being "on" or "on" another portion, do.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Referring to the drawings, substantially identical or corresponding elements are denoted by the same reference numerals, do. In the drawings, the thickness is enlarged to clearly represent the layers and regions. In the drawings, the thicknesses of some layers and regions are exaggerated for convenience of explanation.

1 is a partial cross-sectional view showing a mixer according to an embodiment of the present invention. 2 is a cross-sectional view showing the mixer shown in Fig.

1 and 2, the mixer 100 includes a first outer housing 110, a second outer housing 120, an inner housing 130, a chamber portion 140, a core portion 150, A first swath portion 181, a second swath wall portion 182 and a third swath wall portion 183. The first swath portion 181 may include a first swath portion 160, a first baffle portion 171, a second baffle portion 172,

The first outer housing 110 may be connected to a combustor (not shown). At this time, the first outer housing 110 may be separately connected to the combustor, and a flame may be generated therein.

The second outer housing 120 may be disposed within the first outer housing 110. At this time, the first outer housing 110 and the second outer housing 120 may be spaced apart from each other. External air can flow into and pass through the space between the first outer housing 110 and the second outer housing 120.

The inner housing 130 may be disposed within the second outer housing 120. At this time, outside air may flow into the inner housing 130 and flow. In addition, the inner housing 130 may be spaced apart from the second outer housing 120, and the liquid fuel may move into a space between the inner housing 130 and the second outer housing 120. One end of the inner housing 130 may be disposed inside the second outer housing 120. In this case, the inner housing 130 may be completely inserted into the second outer housing 120.

The chamber part 140 may connect the inner housing 130 and the second outer housing 120. At this time, the chamber part 140 is connected to the fuel guiding part 160 to distribute the liquid fuel supplied from the fuel guiding part 160. In this case, the chamber part 140 may be formed in a circular ring shape and may shield the ends of the inner housing 130 and the second outer housing 120. In addition, the chamber part 140 may form one space along the outer circumferential surfaces of the inner housing 130 and the second outer housing 120. In this case, the chamber part 140 may be formed to be completely blocked from the outside and connected to the spaces of the inner housing 130 and the second outer housing 120. In addition, the inner space of the chamber part 140 may be formed to extend more than the fuel guide part 160. In this case, the area of the discharge port of the fuel guide 160 may be smaller than the area of the interior of the chamber 140. In addition, the portion where the fuel guide 160 and the chamber 140 are connected may be curved (curved). In this case, the liquid fuel discharged from the fuel guiding portion 160 can be moved to the chamber portion 140 through the discharge port which sequentially expands, so that the pressure loss can be minimized. In addition, in this case, the liquid fuel discharged from the fuel guide 160 can be uniformly flowed by suppressing turbulent flow formation, and can be uniformly moved in various directions.

The core portion 150 may be disposed inside the inner housing 130 to be spaced from the inner surface of the inner housing 130. At this time, the core portion 150 may be disposed at a central portion of the inner housing 130, and it is possible to disperse air entering the inner housing 130 in various directions. In this case, the cross-sectional area of the core portion 150 may be constant from the upstream core portion 150 to a certain portion of the core portion 150 with respect to the air flow direction. In addition, the cross-sectional area of the core portion 150 may be reduced from a certain portion of the core portion 150 to a portion of the downstream-side core portion 150 with respect to the flow direction of the air. For example, the core portion 150 may be in the form of a droplet.

The first baffle portion 171 may be disposed inside the chamber portion 140. At this time, the first baffle portion 171 can divide the chamber portion 140 into the first space S1 and the second space S2. The first space S1 may be a space connected to the fuel guide 160 and the second space S2 may be a space connected to the space between the inner housing 130 and the second outer housing 120. [ Lt; / RTI > The first baffle portion 171 may be disposed to be spaced apart from one surface of the chamber portion 140 with respect to the height direction of the chamber portion 140. At this time, one side of the chamber part 140 may be a part drawn from the outer surface of the inner housing 130. The first baffle portion 171 may protrude from the second outer housing 120 into the space inside the chamber portion 140. [ One surface of the first baffle portion 171 may be spaced from the inner wall of the chamber portion 140 to connect the first space S1 and the second space S2. The first space S1 may temporarily store the liquid fuel supplied from the fuel guide 160 and the second space S2 may be formed between the inner housing 130 and the second outer housing 120 It is possible to supply the liquid fuel in connection with the space. As described above, the size (or the length) of the space formed by the first baffle portion 171 between the inner walls of the chamber portion 140 may be different from that of the first baffle portion 171. For example, the distance between the one surface of the first baffle portion 171 and the inner wall of the chamber portion 140 may be different from the first baffle portion 171 as a whole. The distance between the one surface of the first baffle portion 171 and the inner wall of the chamber portion 140 may become larger as the distance from the discharge port portion of the fuel guide portion 160 is larger than the distance from the discharge port portion of the fuel guide portion 160. The first distance L1 between the one surface of the first baffle portion 171 disposed at the discharge port portion of the fuel guide portion 160 and the inner wall of the chamber portion 140 is equal to the distance from the discharge port portion of the fuel guide portion 160 The second distance L2 between the one surface of the first baffle portion 171 disposed in the far chamber portion 140 and the inner wall of the chamber portion 140 may be different from each other. At this time, the first distance L1 may be smaller than the second distance L2. In this case, the first distance L1 may be the upper portion in Fig. 1, and the second distance L2 may be the one measured in the lower portion of Fig. The distance between one side of the first baffle portion 171 and the inner wall of the chamber portion 140 gradually increases from the first distance L1 to the second distance L2. The amount of the liquid fuel moving from the first space S1 to the second space S2 may be different throughout the chamber portion 140 when the distance is variable as described above. For example, in the chamber portion 140 to which the fuel guide portion 160 is connected, the pressure of the liquid fuel due to the liquid fuel supplied from the fuel guide portion 160 may be relatively higher than other portions of the chamber portion 140 . On the other hand, in the portion of the chamber portion 140 farthest from the fuel guide portion 160, the pressure of the liquid fuel relative to other portions of the chamber portion 140 may be relatively low. If the first baffle portion 171 is not present, the liquid fuel is supplied to the inner housing 130 through the chamber portion 140 at a high speed in the chamber portion 140 where the fuel guide portion 160 is connected. To the space between the first outer housing 120 and the second outer housing 120. On the other hand, in the portion of the chamber portion 140 farthest from the fuel guiding portion 160, the velocity of the liquid fuel is low and the pressure of the liquid fuel is decreased, so that the space between the inner housing 130 and the second outer housing 120 A positive fluid can be introduced. In this case, the amount of the liquid fuel moving along the space between the inner housing 130 and the second outer housing 120 may not be uniform over the entire outer surface of the inner housing 130. In addition, when the liquid fuel moves along the space between the inner housing 130 and the second outer housing 120, the particulate matter of the liquid fuel is not uniform throughout the outer surface of the inner housing 130, Can be lowered. However, by forming the first distance L1 to the second distance L2 different from each other as described above, the liquid fuel inside the chamber part 140 can flow into the space between the inner housing 130 and the second outer housing 120 And can be uniformly supplied.

The second baffle portion 172 may be disposed inside the chamber portion 140. At this time, the second baffle portion 172 may be disposed in the second space S2 of the chamber portion 140. [ A plurality of the second baffle portions 172 may be provided and the plurality of second baffle portions 172 may be spaced apart from each other in the chamber portion 140. [ The plurality of second baffle portions 172 can control the amount of the liquid fuel flowing into the space between the inner housing 130 and the second outer housing 120 in the second space S2.

The first swirler 181 may be disposed between the first outer housing 110 and the second outer housing 120 to connect the first outer housing 110 to the second outer housing 120. At this time, the first swirler 181 may rotate the gas entering between the first outer housing 110 and the second outer housing 120 in the first direction. In this case, the first direction may be either clockwise or counterclockwise. The first swirler 181 may be formed in a wing shape. In particular, the first swirler 181 is formed in a spiral shape to rotate the gas. A plurality of first swirlers 181 may be provided. The plurality of first swirlers 181 may be spaced apart from each other on the outer circumferential surface of the second outer housing 120.

The second swirler 182 may be disposed between the second outer housing 120 and the inner housing 130 to pivot the liquid fuel. At this time, the second swirler 182 may be formed similar to the first swirler 181. Further, the second swirler 182 can rotate the liquid fuel in the same second direction as the third swirler 183.

The third swirler 183 may be disposed between the inner housing 130 and the core portion 150. At this time, the third swirler 183 may be formed similar to the first swirler 181. In this case, the third swirler 183 may rotate the gas introduced from the outside in a second direction different from the first direction. For example, the third swirler 183 may rotate the gas in one of the clockwise or counterclockwise directions. In this case, the first swirler 181 and the third swirler 183 can rotate the gas in different directions.

In the operation of the mixer 100 as described above, when the combustion is performed in the combustor, the liquid fuel can be supplied through the fuel guide 160. At this time, the liquid fuel may be supplied from the fuel guiding portion 160 to the chamber portion 140. In this case, the portion connecting the fuel guide portion 160 and the chamber portion 140 is curved so that the liquid fuel is not injected into the chamber portion 140 from the fuel guide portion 160 at a high pressure and the pressure loss is minimized From the fuel guide part 160 to the chamber part 140. [0033] The liquid fuel can be moved into the space between the second outer housing 120 and the inner housing 130 after filling the inside of the chamber part 140. [

Specifically, when the liquid fuel is supplied from the fuel guide portion 160, the liquid fuel can be temporarily stored in the first space S1 of the chamber portion 140. [ At this time, the liquid fuel may be filled in the first space S1 along the first baffle portion 171 in the entire chamber portion 140. The liquid fuel filling the first space S1 can move to the second space S2 along the space between the first baffle portion 171 and the inner wall of the chamber portion 140. [ The speed, pressure and flow rate of the liquid fuel moving from the first space S1 to the second space S2 are controlled according to the size of the space between the first baffle portion 171 and the inner wall of the chamber portion 140 . In addition, the liquid fuel can prevent the liquid fuel from being increased at a specific portion of the chamber portion 140 by moving to the second space S2 after filling the first space S1 to some extent.

The liquid fuel moves from the first space S1 to the second space S2 and then passes between the second baffle portions 172 so that the space between the inner housing 130 and the second outer housing 120 . ≪ / RTI > In this case, the second baffle portion 172 can reduce the turbulence of the liquid fuel due to the pressure difference and the flow rate difference when the liquid fuel is supplied. Particularly, the second baffle portion 172 can eliminate the turbulence of the fluid moving to the space between the inner housing 130 and the second outer housing 120 in the chamber portion 140.

The liquid fuel supplied to the space between the inner housing 130 and the second outer housing 120 can be discharged to the outside. At this time, the second swirler 182 can pivot the liquid fuel at the end of the inner housing 130 by turning the liquid fuel.

During the above process, the gas passing through the first swirler 181 and the third swirler 183 can rotate in opposite directions. This rotation not only makes the liquid fuel injected through the space between the inner housing 130 and the second outer housing 120 fine, but also increases the mixing ratio of gas and fuel at the rear end of the inner housing 130.

Therefore, the mixer 100 can distribute the fuel uniformly throughout the mixer 100, and can increase the uniformity of the granulated liquid fuel discharged from the downstream end of the mixer 100. Further, the mixer 100 can minimize the pressure loss of the liquid fuel at the subsequent stage. The mixer 100 can minimize the turbulence of the liquid fuel when injecting the liquid fuel at the downstream end of the mixer 100. [

3 is a cross-sectional view illustrating a mixer according to another embodiment of the present invention. 4 is a cross-sectional view taken along the line IV-IV in FIG.

3 and 4, the mixer 100A includes a first outer housing 110A, a second outer housing 120A, an inner housing 130A, a chamber portion 140A, a core portion 150A, The first baffle portion 171A, the second baffle portion 172A, the first swathlayer 181A, the second swathlayer 182A and the third swathlayer 183A. At this time, the first outer housing 110A, the second outer housing 120A, the chamber portion 140A, the core portion 150A, the fuel guide portion 160A, the first swirler 181A, 181A, the second swirler 182A, and the third swirler 183A are the same as or similar to those described above, and thus a detailed description thereof will be omitted.

The second baffle portion 172A may be disposed to form an angle with the first baffle portion 171A as described above. A plurality of the second baffle portions 172A may be provided, and a plurality of the second baffle portions 172A may be disposed to be spaced apart from each other. At this time, the adjacent second baffle portion 172A may form the through hole 173A through which the fuel passes together with the first baffle portion 171A and the chamber portion 140A. In this case, a plurality of through holes 173A may be provided, and a plurality of through holes 173A may be arranged to be spaced apart from each other. The size of the plurality of through-holes 173A may vary depending on the distance from the fuel guide 160A. At this time, the distance between the adjacent second baffle portions 172A forming the through holes 173A may be different according to the distance from the fuel guide portion 160A. For example, the size of the through hole 173A adjacent to the fuel guide portion 160A may be smaller than the size of the through hole 173A far from the fuel guide portion 160A. In this case, even when the fuel is supplied from the fuel guide portion 160A at a high pressure, it is possible to realize a uniform flow of the liquid fuel at the entire surface of the inner housing 130A by passing a smaller amount of the liquid fuel than the other portions. Further, the second baffle portion 172A can improve the flow of the liquid fuel injected from the rear surface of the mixer 100A by reducing the flow of the liquid fuel in the form of turbulent flow when the liquid fuel passes through the through hole 173A.

Therefore, the mixer 100A can uniformly supply the liquid fuel to the entire mixer 100A when the liquid fuel flows, and can make the flow of the liquid fuel uniform.

In addition, the mixer 100A reduces the pressure loss of the liquid fuel supplied from the fuel guide portion 160A to the chamber portion 140A by connecting the portion connected to the chamber portion 140A and the fuel guide portion 160A in a curved manner. . The mixer 100A minimizes the space through which the liquid fuel diffuses through the first baffle portion 171A, thereby reducing the pressure loss of the liquid fuel flowing into the chamber portion 140A.

Fig. 5 is a conceptual diagram showing an engine including the mixer shown in Fig. 1 or Fig.

Referring to FIG. 5, the engine 10 may be used in an industrial generator, aviation, and the like. At this time, the engine 10 may include the compressor 1, the combustor 2, and the turbine 3. The compressor (1) can compress the air introduced from the outside and supply it to the combustor (2).

The combustor 2 has a mixer (not shown, for example, 100 in FIG. 1 or 100A in FIG. 3) therein, and can combust the liquid fuel supplied from the mixer. At this time, the mixer is connected to the compressor 1 to mix the compressed gas (or air) supplied from the compressor 1 with the liquid fuel. The mixer can mix the liquid fuel with the compressed gas and supply it into the combustor (2).

The combustor 2 may include an igniter (not shown) for providing energy for combustion to the fuel supplied from the mixer, in addition to the mixer. At this time, the igniter may be integrally formed with the mixer or may be disposed separately from the mixer.

The combustor 2 may include at least one mixer. At this time, when the combustor 2 includes a plurality of the mixers, the plurality of mixers may be arranged to be spaced apart from each other on a constant circumference.

The turbine 3 is disposed at the rear end of the combustor 2 and can generate power through the combustion gas supplied from the combustor 2. At this time, the turbine 3 can share the rotation axis with the compressor 1 and can operate the compressor 1. [

In the operation of the engine 10 as described above, the compressor 1 operates to suck external air, compress the air, and supply the compressed air to the combustor 2. The compressed air can be introduced into the mixer, and the liquid fuel can be supplied from the outside to the mixer. At this time, the mixer can uniformly distribute the liquid fuel to the entire mixer as described above. In addition, the mixer can minimize the occurrence of turbulence during the movement of the liquid fuel.

When the air and the liquid fuel are supplied to the mixer as described above, the mixer can mix the liquid fuel with air. At this time, energy can be supplied from the igniter to burn the fuel.

The combustion gas generated when the fuel is burned can operate the turbine 3. At this time, the combustion gas may be discharged to the rear surface of the turbine 3 after the turbine 3 is operated. The turbine 3 can be connected to the compressor 1 to operate the compressor 1.

As described above, the mixer can stably and uniformly supply fuel into the combustor 2 while the engine 10 is operating.

Therefore, the engine 10 can prevent the malfunction by stabilizing the flame generated in the combustor 2. In addition, the engine 10 can uniformly and efficiently atomize the liquid fuel in the mixer, thereby improving stability in operation.

6 is a partial cross-sectional view showing a mixer according to another embodiment of the present invention. 7 is a cross-sectional view showing the mixer shown in Fig. 8 is a cross-sectional view showing part A shown in Fig.

6 to 8, the mixer 200 includes a first outer housing 210, a second outer housing 220, an inner housing 230, a chamber portion 240, a core portion 250, A first swath portion 281, a second swath wall portion 282 and a third swath wall portion 283. The first swath portion 272 may include a first swath portion 260, a first baffle portion 271, a second baffle portion 272,

The first outer housing 210 may be connected to a combustor (not shown). At this time, the first outer housing 210 may be separately connected to the combustor, and a flame may be generated therein.

The second outer housing 220 may be disposed within the first outer housing 210. At this time, the first outer housing 210 and the second outer housing 220 may be spaced apart from each other. External air can flow into the space between the first outer housing 210 and the second outer housing 220 and pass through.

The inner housing 230 may be disposed within the second outer housing 220. At this time, outside air may flow into the inner housing 230 and flow. The inner housing 230 may be spaced apart from the second outer housing 220 and the liquid fuel may move into a space between the inner housing 230 and the second outer housing 220.

A through hole 231 may be formed in the outer surface of the inner housing 230. The through hole 231 may be formed to penetrate from the outer surface of the inner housing 230 to the inner surface thereof. At this time, the through hole 231 may be formed in the inner housing 230 in a diagonal direction. For example, the inlet of the through-hole 231 and the outlet of the through-hole 231 may be disposed at different portions. The inlet port of the through hole 231 may be formed on the inner surface of the inner housing 230 and the outlet port of the through hole 231 may be formed on the outer surface of the inner housing 230. Specifically, the inlet of the through-hole 231 may be disposed upstream with respect to the flow direction of the liquid fluid than the outlet of the through-hole 231. As another embodiment, the through hole 231 may be formed in a spiral shape in the inner housing 230. In this case, the inner flow path connecting the inlet of the through hole 231 and the outlet of the through hole 231 may be formed in a spiral shape. Hereinafter, for the sake of convenience of explanation, the case of forming the through hole 231 as a helical shape will be described in detail.

The through-hole 231 as described above can supply the gas in the same direction as the direction of rotation of the liquid fuel. The through hole 231 can minimize the flow obstruction of the liquid fuel due to the supply of gas by supplying the liquid to the liquid fuel so as to rotate in the same direction as the direction of rotation of the liquid fuel.

A plurality of through holes 231 may be provided. At this time, the plurality of through holes 231 may be arranged to circulate the outer surface of the inner housing 230. The plurality of through holes 231 may be arranged on the outer surface of the inner housing 230 so as to be spaced apart from each other along one circumference.

Each of the through holes 231 may be arranged adjacent to the second swirler 282. At this time, the through holes 231 can guide the gas inside the inner housing 230 to the liquid fuel that has passed through the second swirler 282. That is, the discharge port of each through hole 231 may be disposed on the downstream side of the second swirler 282 with respect to the flow direction of the liquid fuel.

The chamber part 240 may connect the inner housing 230 to the second outer housing 220. At this time, the chamber part 240 is connected to the fuel guiding part 260 to distribute the liquid fuel supplied from the fuel guiding part 260. In this case, the chamber part 240 may be formed in a circular shape and may shield the ends of the inner housing 230 and the second outer housing 220. In addition, the chamber part 240 may form one space along the outer circumferential surfaces of the inner housing 230 and the second outer housing 220. In this case, the chamber part 240 may be formed to be completely blocked from the outside, and may be connected to the spaces of the inner housing 230 and the second outer housing 220. Also, the inner space of the chamber part 240 may be formed to be expanded. In this case, the area of the discharge port of the fuel guide 260 may be smaller than the area of the interior of the chamber 240. In addition, a portion where the fuel guide 260 and the chamber 240 are connected may be curved (curved). In this case, the liquid fuel discharged from the fuel guide portion 260 can be moved to the chamber portion 240 through the discharge port that sequentially expands, thereby minimizing the pressure loss. In addition, in this case, the liquid fuel discharged from the fuel guide unit 260 can minimize turbulent flow and move in various directions.

The core portion 250 may be disposed inside the inner housing 230. At this time, the core portion 250 may be disposed at the center portion of the inner housing 230, and it is possible to disperse the air entering the inner housing 230 in various directions. In this case, the cross-sectional area of the core portion 250 may be constant from the upstream core portion 250 to a certain portion of the core portion 250 with respect to the air flow direction. In addition, the cross-sectional area of the core portion 250 may be reduced from a certain portion of the core portion 250 to a portion of the downstream-side core portion 250 with respect to the air flow direction.

The first swirler 281 may be disposed between the first outer housing 210 and the second outer housing 220 to connect the first outer housing 210 to the second outer housing 220. At this time, the first swirler 281 may rotate the gas entering between the first outer housing 210 and the second outer housing 220 in the first direction. In this case, the first direction may be either clockwise or counterclockwise. The first swirler 281 may be formed in a wing shape. In particular, the first swirler 281 is formed in a spiral shape to rotate the gas. A plurality of first swirlers 281 may be provided. The plurality of first swirlers 281 may be spaced apart from each other on the outer circumferential surface of the second outer housing 220.

The second swirler 282 is disposed between the second outer housing 220 and the inner housing 230 to rotate (or rotate) the liquid fuel. At this time, the second swirler 282 may be formed similar to the first swirler 281. At this time, the second swirler 282 can rotate the liquid fuel in the same direction as the third swirler 283.

The third swirler 283 may be disposed between the inner housing 230 and the core portion 250. At this time, the third swirler 283 may be formed similarly to the first swirler 281. In this case, the third swirler 283 may rotate the gas introduced from the outside in a second direction different from the first direction. For example, the third swirler 283 may rotate the gas in one of the clockwise or counterclockwise directions. In this case, the first swirler 281 and the third swirler 283 can rotate the gas in different directions. Further, the through hole 231 can supply gas to the liquid fuel to rotate in the second direction when the liquid fuel rotates in the second direction.

In the operation of the mixer 200 as described above, when the combustion is performed in the combustor, the liquid fuel can be supplied through the fuel guide 260. At this time, the liquid fuel may be supplied from the fuel guiding portion 260 to the chamber portion 240. The liquid fuel can be moved into the space between the second outer housing 220 and the inner housing 230 after filling the chamber part 240. [

The liquid fuel supplied to the space between the inner housing 230 and the second outer housing 220 can be discharged to the outside. At this time, the second swirler 282 can pivot the liquid fuel at the end of the inner housing 230 by turning the liquid fuel.

When the liquid fuel is supplied to the space between the inner housing 230 and the second outer housing 220 as described above, the through hole 231 is formed in the inner housing 230 and the second outer And can be injected into the space between the housings 220. At this time, the gas inside the inner housing 230 can move to the space between the inner housing 230 and the second outer housing 220 inside the inner housing 230 due to the pressure difference.

When the gas moves as described above, the gas can push the liquid fuel moving into the space between the inner housing 230 and the second outer housing 220 to the inner surface of the second outer housing 220. In this case, the liquid fuel may completely adhere to the inner surface of the second outer housing 220, and a thin film may be formed on the inner surface of the second outer housing 220 while the liquid fuel spreads.

In this case, when the liquid fuel is discharged to the outside through the gap between the second outer housing 220 and the inner housing 230 by forming a thin film on the inner surface of the second outer housing 220, fine particles may be formed. In particular, the gas supplied to the through-hole 231 as described above can form a liquid film as thin as possible by increasing the surface velocity of the liquid fuel. In this case, the liquid fuel can be made into a fine particle shape by forming a thin film having the thinnest shape, and the atomized liquid fuel can be uniformly mixed with the gas.

During the above process, the gas passing through the first swirler 281 and the third swirler 283 may rotate in opposite directions. This rotation not only makes the liquid fuel injected through the space between the inner housing 230 and the second outer housing 220 atomized, but also increases the mixing ratio of gas and fuel at the rear end of the inner housing 230.

Accordingly, the mixer 200 can distribute the fuel uniformly throughout the mixer 200, and the uniformity of the particulate liquid fuel discharged from the downstream end of the mixer 200 can be increased. Further, the mixer 200 can minimize the pressure loss of the liquid fuel at the subsequent stage. The mixer 200 can minimize the turbulence of the liquid fuel when injecting the liquid fuel at the downstream end of the mixer 200.

9 is a cross-sectional view showing a mixer according to another embodiment of the present invention. 10 is a perspective view showing the inner housing of the mixer shown in FIG.

9 and 10, the mixer 200A includes a first outer housing 210A, a second outer housing 220A, an inner housing 230A, a chamber portion 240A, a core portion 250A, A first swirler 281A, a second swirler 282A, and a third swirler 283A. At this time, the first outer housing 210A, the second outer housing 220A, the chamber portion 240A, the core portion 250A, the fuel guide portion 260A, the first swirler 281A, 281A, the second swirler 282A, and the third swirler 283A are the same as or similar to those described above, detailed description thereof will be omitted.

The inner housing 230A may have a plurality of through holes 231A formed on the outer surface thereof. At this time, the plurality of through holes 231A may be arranged to be spaced apart from each other. In addition, a part of the plurality of through holes 231A may be arranged to be spaced apart in the longitudinal direction of the inner housing 230A. At this time, a part of the plurality of through holes 231A may be arranged diagonally along the longitudinal direction of the inner housing 230A. For example, the plurality of through-holes 231A may include a first through-hole 231A-1 and a second through-hole 231A-2. The plurality of first through holes 231A-1 are formed in the outer surface of the inner housing 230A along one side of the outer surface of the inner housing 230A, . ≪ / RTI > Also, a plurality of second through-holes 231A-2 may be provided, and the plurality of second through-holes 231A-2 may be arranged to form one circle. At this time, the plurality of first through-holes 231A-1 and the plurality of second through-holes 231A-2 may be disposed at different portions of the inner housing 230A. In this case, the plurality of first through-holes 231A-1 may be arranged upstream of the plurality of second through-holes 231A-2 with respect to the flow direction of the liquid fuel.

In this case, the number of the first through-holes 231A-1 and the number of the second through-holes 231A-2 may be different from each other. For example, the number of the first through-holes 231A-1 may be larger than the number of the second through-holes 231A-2.

When the number of the first through-holes 231A-1 is different from the number of the second through-holes 231A-2 as described above, the gas injected through the first through-holes 231A-1 uniformly disperses the liquid fuel And can be brought into close contact with the inner surface of the second outer housing 220A as much as possible. Further, the second through-hole 231A-2 can keep the liquid fuel in the thinnest thin film shape as much as possible by further adhering the liquid fuel to the inner surface of the second outer housing 220A. In this case, when the number of the second through-holes 231A-2 is larger than that of the first through-holes 231A-1, the liquid fuel is scattered by the gas injected from the second through-holes 231A-2, Not only can not be properly formed, but also liquid fuel may be mixed into a part. However, by forming the number of the second through-holes 231A-2 smaller than the number of the first through-holes 231A-1 as described above, it is possible to efficiently form the thin film of the liquid fuel and to transfer the liquid fuel to the second outer housing 220A can be uniformly maintained on the entire inner surface.

The first through-hole 231A-1 and the second through-hole 231A-2 may be formed to be the same as or similar to the through-hole 231A described with reference to FIGS.

Therefore, the mixer 200A can uniformly supply the liquid fuel to the entire mixer 200A when the liquid fuel flows, and can make the flow of the liquid fuel uniform.

11 is a cross-sectional view showing a mixer according to another embodiment of the present invention. 12 is a perspective view showing the inner housing of the mixer shown in Fig.

11 and 12, the mixer 200B includes a first outer housing 210B, a second outer housing 220B, an inner housing 230B, a chamber portion 240B, a core portion 250B, A first swirler 281B, a second swirler 282B, and a third swirler 283B. At this time, the first outer housing 210B, the second outer housing 220B, the chamber portion 240B, the core portion 250B, the fuel guide portion 260B, the first swathelayer 281B, 281B, the second swirler 282B, and the third swirler 283B are the same as or similar to those described above, detailed description thereof will be omitted.

The inner housing 230B may have a plurality of through holes 231B formed on the outer surface thereof. At this time, the plurality of through holes 231B may be arranged to be spaced apart from each other. In addition, a part of the plurality of through holes 231B may be arranged to be spaced apart in the longitudinal direction of the inner housing 230B. At this time, some of the plurality of through holes 231B may be arranged diagonally along the longitudinal direction of the inner housing 230B. For example, the plurality of through-holes 231B may include a first through-hole 231B-1 and a second through-hole 231B-2. The plurality of first through holes 231B-1 may be formed in the outer surface of the inner housing 230B along one side of the outer surface of the inner housing 230B, . ≪ / RTI > Also, a plurality of second through-holes 231B-2 may be provided, and the plurality of second through-holes 231B-2 may be arranged to form one circle. At this time, the plurality of first through-holes 231B-1 and the plurality of second through-holes 231B-2 may be disposed at different portions of the inner housing 230B. In this case, the plurality of first through-holes 231B-1 may be arranged upstream of the plurality of second through-holes 231B-2 with respect to the flow direction of the liquid fuel.

The first through-hole 231B-1 and the second through-hole 231B-2 may have different sizes. For example, the size of the inlet of the first through-hole 231B-1 may be different from the size of the inlet of the second through-hole 231B-2. The size of the discharge port of the first through-hole 231B-1 may be different from the discharge port of the second through-hole 231B-2. Specifically, the size of the inlet of the first through-hole 231B-1 may be larger than the size of the inlet of the second through-hole 231B-2, and the size of the outlet of the first through- Can be larger than the size of the discharge port of the through hole 231B-2. In this case, as described above, in the first through-hole 231B-1, not only the liquid fuel but also the thin film can be formed, and the second through-hole 231B-2 can make the thin film of the liquid fuel thinner have.

The first through-hole 231B-1 and the second through-hole 231B-2 may be formed to be the same as or similar to the through-hole 231 described with reference to FIGS. In addition, the number of the first through-holes 231B-1 and the number of the second through-holes 231B-2 may be the same as or similar to those described in FIGS. 10 and 11.

Accordingly, the mixer 200B can uniformly maintain the liquid fuel throughout the mixer 200B by making the liquid fuel thinner and uniformly supplied. Further, the mixer 200B can prevent unstable combustion in combustion by mixing the liquid fuel into fine particles and mixing them with the gas.

FIG. 13 is a conceptual diagram showing an engine including the mixer shown in FIG. 6, FIG. 9, or FIG.

Referring to Fig. 13, the engine 10-1 can be used for an industrial generator, aviation, and the like. At this time, the engine 10-1 may include a compressor 1-1, a combustor 2-1, and a turbine 3. [ The compressor (1-1) can compress the air introduced from the outside and supply it to the combustor (2-1).

The combustor 2-1 has a mixer (not shown, for example, 200 in FIG. 6, 200A in FIG. 9, or 200B in FIG. 11) and can combust the liquid fuel supplied from the mixer. At this time, the mixer is connected to the compressor 1-1 so that the compressed air (or air) supplied from the compressor 1-1 can be received and mixed with the liquid fuel. The mixer can mix the liquid fuel with the compressed gas and supply it into the combustor 2-1.

The combustor 2-1 may include an igniter (not shown) for providing energy for combustion to the fuel supplied from the mixer, in addition to the mixer. At this time, the igniter may be integrally formed with the mixer or may be disposed separately from the mixer.

The combustor 2-1 may include at least one mixer. At this time, when the combustor 2-1 includes a plurality of the mixers, the plurality of mixers may be arranged to be spaced apart from each other on a predetermined circumference.

The turbine 3 is disposed at the rear end of the combustor 2-1 and can generate power through the combustion gas supplied from the combustor 2-1. At this time, the turbine 3 can share the rotation axis with the compressor 1-1 and can operate the compressor 1-1.

The operation of the engine 10-1 will now be described. The compressor 1-1 operates to suck external air, compress the air, and supply the compressed air to the combustor 2-1. The compressed air can be introduced into the mixer, and the liquid fuel can be supplied from the outside to the mixer. At this time, the mixer can uniformly distribute the liquid fuel to the entire mixer as described above. In addition, the mixer can minimize the occurrence of turbulence during the movement of the liquid fuel.

When the air and the liquid fuel are supplied to the mixer as described above, the mixer can mix the liquid fuel with air. At this time, energy can be supplied from the igniter to burn the fuel.

The combustion gas generated when the fuel is burned can operate the turbine 3. At this time, the combustion gas may be discharged to the rear surface of the turbine 3 after the turbine 3 is operated. The turbine 3 may be connected to the compressor 1-1 to operate the compressor 1-1.

As described above, while the engine 10-1 is operating, the mixer can stably and uniformly supply fuel into the combustor 2-1.

Therefore, the engine 10-1 can prevent the malfunction by stabilizing the flame generated in the combustor 2-1. In addition, the engine 10-1 can improve stability during operation by uniformly and efficiently atomizing the liquid fuel in the mixer.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it is possible to make various modifications and variations without departing from the spirit and scope of the invention. Accordingly, it is intended that the appended claims cover all such modifications and variations as fall within the true spirit of the invention.

According to an embodiment of the present invention, embodiments of the present invention can be applied to an industrial combustor used for ships, generators, etc., by providing an efficient mixer and a combustor including the mixer.

Claims (20)

1. An inner housing into which air flows;

   A first outer housing disposed to surround an outlet of the inner housing and spaced apart from the inner housing to receive air;

   A second outer housing disposed within the first outer housing and spaced apart from the inner housing to guide the liquid fuel;

   A fuel guide connected to the second outer housing and guiding the liquid fuel from the outside to a space between the inner housing and the second outer housing; And

   And a first baffle portion disposed between the inner housing and the second outer housing for distributing liquid fuel supplied from the fuel guide portion between the inner housing and the second outer housing.
2. The method according to claim 1,

   And a chamber portion connecting the inner housing and the second outer housing, wherein the first baffle portion is disposed.
3. 3. The method of claim 2,

   Wherein the first baffle portion comprises:

   The chamber portion being divided into two spaces, and a portion of the chamber portion is spaced apart from the inner wall of the chamber portion so as to connect the two chambers.
4. The method of claim 3,

   Wherein the spaced distance between the first baffle portion and the inner wall of the chamber portion is different according to the distance from the fuel guide portion.
5. The method according to claim 1,

   And a second baffle portion arranged to form an angle with the first baffle portion and to distribute the liquid fuel supplied between the inner housing and the second outer housing.
6. 6. The method of claim 5,

   A plurality of second baffle portions are provided,

   And the distance between the adjacent second baffle portions is different according to the distance from the fuel guide portion.
7. An inner housing into which air flows;

   A first outer housing disposed to surround an outlet of the inner housing and spaced apart from the inner housing to receive air;

   A second outer housing disposed within the first outer housing and spaced apart from the inner housing to guide the liquid fuel; And

   And a fuel guide connected to the second outer housing and guiding the liquid fuel from the outside to a space between the inner housing and the second outer housing,

   Wherein the inner housing has a through-hole communicating with a space between the inner housing and the second outer housing.
8. 8. The method of claim 7,

   Wherein the through hole is formed in a spiral shape.
9. 8. The method of claim 7,

   A plurality of through holes are provided,

   Wherein the plurality of through holes are arranged along the outer surface of the inner housing and spaced apart from each other.
10. 8. The method of claim 7,

    A plurality of through holes are provided,

    Wherein the plurality of through holes are arranged diagonally on an outer surface of the inner housing.
11. 8. The method of claim 7,

    A plurality of through holes are provided,

    Wherein a size of the inlet of each of the through holes is different from that of the inlet.
12. 8. The method of claim 7,

    And a swirler disposed between the second outer housing and the inner housing,

    And the discharge port of the through-hole is disposed on the downstream side of the swirler with respect to the flow direction of the liquid fuel.
13. An inner housing into which air flows;

    A first outer housing disposed to surround an outlet of the inner housing and spaced apart from the inner housing to receive air;

    A second outer housing disposed within the first outer housing and spaced apart from the inner housing to guide the liquid fuel;

    A fuel guide connected to the second outer housing and guiding the liquid fuel from the outside to a space between the inner housing and the second outer housing; And

    And a first baffle portion disposed between the inner housing and the second outer housing and distributing the liquid fuel supplied from the fuel guide portion between the inner housing and the second outer housing,

    Wherein the inner housing has a through-hole communicating with a space between the inner housing and the second outer housing.
14. 14. The method of claim 13,

    And a chamber portion connecting the inner housing and the second outer housing, wherein the first baffle portion is disposed.
15. 15. The method of claim 14,

    Wherein the first baffle portion comprises:

    The chamber portion being divided into two spaces, and a portion of the chamber portion is spaced apart from the inner wall of the chamber portion so as to connect the two chambers.
16. 15. The method of claim 14,

    And a second baffle portion arranged to form an angle with the first baffle portion and to distribute the liquid fuel supplied between the inner housing and the second outer housing.
17. 15. The method of claim 14,

    Wherein the through hole is formed in a spiral shape.
18. 15. The method of claim 14,

    A plurality of through holes are provided,

    Wherein the plurality of through holes are arranged diagonally on an outer surface of the inner housing.
19. 15. The method of claim 14,

    A plurality of through holes are provided,

    Wherein a size of the inlet of each of the through holes is different from that of the inlet.
20. 15. The method of claim 14,

    And a swirler disposed between the second outer housing and the inner housing,

    And the discharge port of the through-hole is disposed on the downstream side of the swirler with respect to the flow direction of the liquid fuel.

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